← BACK TO RESULTS
EMANON PART NO.
NAS1587-4
NAS1587-4 is a washer in steel comp 321 or steel comp 347 and passivate finish.
Washer
SPECIFICATIONS
KEY DIMENSIONS
INSIDE DIAMETER0.252–0.260 in
OUTSIDE DIAMETER0.531 in nom
THICKNESS0.062 in
SHAPE
PERIPHERAL SHAPERound
CENTER HOLE SHAPERound
CROSS-SECTIONAL SHAPERectangular
MATERIAL & FINISH
MATERIALSteel comp 321 or steel comp 347
MATERIAL SPECMIL-S-6721 — MIL SPEC · QQ-S-763 — FED SPEC
FINISHPassivate
FINISH SPECQQ-P-35
STANDARDS & TRACEABILITY
NSN5310-00-279-9075
GOVERNING STANDARD80205-NAS1587
FLIS · NSN 5310-00-279-9075 · retrieved 2026-08-08
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
size: 1/4", plain washer, corrosion resistant steel, NAS1587 series washer
Emanon is a stocking distributor — quality-system certifications are held by the certified manufacturers we source from, not by Emanon. Every shipment carries manufacturer certifications and full lot traceability.